dynamic update blueprint

[amoxuk]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

some package in my folder, I want add new package in the folder at sanic running.

@app.get('xx')
async def reload(rq):
for folder in os.listdir('somefolder'):
pkg = importlib.import_module(folder)
_lib.append(pkg.app)
bp = Bleprint.group(*_lib,url_prefix='/someurl')
app.router.reset()
app.blueprint(bp)

reload success but use the url throw error.
Nonetype object is not callable in sanic router

Code snippet

No response

Expected Behavior

No response

How do you run Sanic?

As a script (app.run or Sanic.serve)

Operating System

Linux

Sanic Version

22.12.0

Additional context

No response

[amoxuk]

add app.finalize() to solve this problem.

But here is a new problem.

After reload, I can request the blueprint's url many times if I refresh the browser quickly, but it returns 404 after the sanic logs 'KeepAlive Timeout,Closing cojnextion.'.

It looks like I reload a temp variable of 'app'.

How to reload the gloable app?